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AWWA Comment Period on ANSI/AWWA B512 – Sulfur Dioxide

AWWA Comment Period on ANSI/AWWA B512 – Sulfur Dioxide
December 23, 2022

AWWA solicits public comments on all proposed new AWWA Standards, and on all proposed revisions, reaffirmations, or withdrawals of existing AWWA Standards. The referenced standards project is being considered for approval and the publication of this notice begins the 45-day public comment period for AWWA and ANSI. An electronic public review copy of the proposed standard can be obtained for review during the comment period by emailing ETS Support. Comments must be submitted in writing to the AWWA contact listed below no later than the last day of the comment period specified herein. Such comments shall be specific to the section(s) of the standard under review and include sufficient detail so as to enable the reader to understand the commenter's position, concerns and suggested alternative language, if appropriate.

AWWA’s Comment Period closes on Feb. 6, 2023.

Send comments to:
Nathan Edman
303.347.6241 phone

The review copy will be edited for publication and may also be revised as appropriate based on any comments received during the public comment period. Therefore, this copy is not suitable for continued utilization and is intended only for comment purposes.

Final publication of the standard may take several months. When it is available, a notice will be published in the official notice section of Journal - American Water Works Association. The standard becomes an effective AWWA standard on the first day of the month following such publication in Journal - American Water Works Association. 

SCOPE
This standard describes sulfur dioxide, a compressed, nonflammable liquefied gas, for use in the treatment of potable water, wastewater, or reclaimed water to remove excess residual chlorine.

MAJOR REVISIONS 
Major revisions made to the standard in this edition include the following:
1. Minor boilerplate language updates in the following sections:
• I.C. Acceptance
• III.A. Purchaser Options and Alternatives
• Sections 2: References
• Section 4: Requirements
• Section 4.3.2 Product Certifications
• Section 5.5 Notice of Nonconformance
• Section 6.3 Affidavit of Compliance
2. Updated Values in II.A. Safety and Accidental Release Reporting
1.3.Updated catalog numbers in Section 5.3.3 Water—Karl Fischer titrimetric method

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